Communication system radio communication terminal, and radio base station

Abstract

In a wireless communication system configured from a wireless base station and a wireless communication terminal, wherein a wireless communication line is set between the wireless base station and the wireless communication terminal, the wireless base station includes a wireless base station transmission rate broadcast section that notifies the wireless communication terminal of a transmission rate that enables to be supported by the wireless base station on the wireless communication line from the wireless communication terminal to the wireless base station, and the wireless communication terminal includes a storage section that stores a transmission rate required by the wireless communication terminal on the wireless communication line from the wireless communication terminal to the wireless base station; a transmission rate comparison section that compares the transmission rate notified from the wireless base station with the transmission rate stored in the storage section; and a transmission rate determination section that determines a transmission rate on the wireless communication line from the wireless communication terminal to the wireless base station based on a comparison result of the transmission rate comparison section.

1. A wireless communication system configured from a wireless base station and a wireless communication terminal,
 the wireless base station comprises: 
 a broadcast section that broadcasts information via a broadcast message, wherein the broadcasted information includes an initial uplink transmission resources, and 
 the wireless communication terminal comprises: 
 an obtaining section that obtains the initial uplink transmission resources from the broadcasted message; and 
 a transmission section that transmits data corresponding to the obtained uplink transmission resources. 
 
     
     
       2. A wireless communication system configured from a wireless base station and a wireless communication terminal, wherein a wireless communication line is set between the wireless base station and the wireless communication terminal,
 the wireless communication terminal comprises: 
 a terminal transmission rate notify section that notifies the wireless base station of a transmission rate required by the wireless communication terminal on the wireless communication line from the wireless communication terminal to the wireless base station; and 
 a transmission rate determination section that determines transmission rate on the wireless communication line from the wireless communication terminal to the wireless base station, and 
 the wireless base station comprises: 
 a determination section that determines whether or not the transmission rate notified from the wireless communication terminal enables to be supported; and 
 a determination result notify section that notifies the wireless communication terminal of a determination result of the determination section, 
 wherein the transmission rate determination section determines the initial transmission rate on the wireless communication line from the wireless communication terminal to the wireless base station based on the determination result notified from the wireless base station, 
 wherein the terminal transmission rate notify section notifies the wireless base station of the transmission rate when the wireless base station and the wireless communication terminal exchange their mutual state information, before a connection request from an application. 
 
     
     
       3. The wireless communication system according to  claim 2 , wherein the wireless communication terminal notifies the wireless base station of the transmission rate at a moment when power of the wireless communication terminal is turned on. 
     
     
       4. The wireless communication system according to  claim 2  or  3 , wherein the terminal transmission rate notify section notifies the wireless base station of a state information request message including the transmission rate. 
     
     
       5. The wireless communication system according to  claim 4 , wherein the wireless communication terminal comprises a request transmission rate transmission section that retransmits a request of a transmission rate lower than the transmission rate required by the wireless communication terminal when the determination result from the wireless base station section shows that the transmission rate does not enable to be supported. 
     
     
       6. A wireless communication terminal comprising:
 an obtaining section that obtains an initial uplink transmission resources from a message broadcasted from a wireless base station via a broadcast message; and 
 a transmission section that transmits data obtained corresponding to the obtained uplink transmission resources. 
 
     
     
       7. A wireless communication terminal, wherein a wireless communication line set between a wireless base station and the wireless communication terminal, comprising:
 a terminal transmission rate notify section that notifies the wireless base station of an transmission rate required by the wireless communication terminal on the wireless communication line from the wireless communication terminal to the wireless base station; 
 wherein the terminal transmission rate notify section notifies the wireless base station of the transmission rate when the wireless base station and the wireless communication terminal exchange their mutual state information, before a connection request from an application; and 
 a transmission rate determination section that determines a transmission rate on the wireless communication line from the wireless communication terminal to the wireless base station based on a determination result as to whether or not the wireless base station enables to support the transmission rate notified from the wireless communication terminal. 
 
     
     
       8. The wireless communication terminal according to  claim 7 , wherein when power of the wireless communication terminal is turned on, the wireless communication terminal notifies the wireless base station of the transmission rate. 
     
     
       9. The wireless communication terminal according to  claim 7  or  8 , wherein the terminal transmission rate notify section notifies the wireless base station of a state information request message including the transmission rate. 
     
     
       10. The wireless communication terminal according to  claim 9 , comprising:
 a request transmission rate transmission section that retransmits a request of a transmission rate lower than the transmission rate required by the wireless communication terminal when the determination result from the wireless base station section shows that the transmission rate does not enable to be supported. 
 
     
     
       11. A wireless base station for performing communications, comprising:
 a broadcast section that broadcasts information via a broadcast message, wherein the broadcasted information includes an uplink transmission resources; and 
 wherein the wireless communication terminal can obtain the initial uplink transmission resources from the broadcasted message. 
 
     
     
       12. A method of a wireless communication system configured from a wireless base station and a wireless communication terminal,
 the wireless base station comprises: 
 broadcasting information via a broadcast message, wherein the broadcasted information includes an uplink transmission resources, and 
 the wireless communication terminal comprises: 
 obtaining the uplink transmission resources from the broadcasted message; and 
 transmitting data corresponding to the obtained uplink transmission resources. 
 
     
     
       13. A transmission rate control method of a wireless communication system configured from a wireless base station and a wireless communication terminal, wherein a wireless communication line is set between the wireless base station and the wireless communication terminal,
 the transmission rate control method includes the steps in which: 
 the wireless communication terminal notifies the wireless base station of a transmission rate required by the wireless communication terminal on the wireless communication line from the wireless communication terminal to the wireless base station; wherein 
 the wireless communication terminal notifies the wireless base station of the transmission rate when the wireless base station and the wireless communication terminal exchange their mutual state information, before a connection request from an application; 
 the wireless communication terminal determines a transmission rate on the wireless communication line from the wireless communication terminal to the wireless base station; 
 the wireless base station determines whether or not the transmission rate notified from the wireless communication terminal enables to be supported; 
 the wireless base station notifies the wireless communication terminal of a determination result of the determination section; and 
 the wireless communication terminal determines the transmission rate on the wireless communication line from the wireless communication terminal to the wireless base station based on the determination result notified from the wireless base station. 
 
     
     
       14. The transmission rate control method according to the  claim 13 , wherein the wireless communication terminal notifies the wireless base station of the transmission rate when power of the wireless communication terminal is turned on. 
     
     
       15. The wireless communication system according to  claim 13  or  14 , wherein the terminal transmission rate notify section notifies the wireless base station of a state information request message including the transmission rate. 
     
     
       16. The wireless communication system according to  claim 15 , wherein the wireless communication terminal retransmits a request of a transmission rate lower than the transmission rate required by the wireless communication terminal when the determination result from the wireless base station section shows that the transmission rate does not enable to be supported.